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Bridge Rectifier Diode 35A 1000V for Air Conditioner and Welding Machine
Bridge Rectifier Diode 35A 1000V for Air Conditioner and Welding Machine
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GBPC3510W Single-Phase Bridge Rectifier — 35A 1000V, 2pcs, Air Conditioner & Welding Machine
The GBPC3510W is a single-phase full-wave bridge rectifier module rated at 35A continuous forward current and 1000V peak repetitive reverse voltage (VRRM), in a GBPC (bolt-down) package with wire leads. It converts single-phase AC input to DC output using four internal rectifier diodes in a full-wave bridge configuration. Widely used in air conditioner compressor drive circuits, electric welding machine power supplies, industrial motor drives, and high-current DC power supplies. Supplied as a 2-piece pack.
Technical Specifications
| Parameter | Symbol | Value |
|---|---|---|
| Average Forward Current | I_F(AV) | 35A |
| Peak Repetitive Reverse Voltage | V_RRM | 1000V |
| Peak Forward Surge Current | I_FSM | 400A (8.3ms) |
| Forward Voltage Drop | V_F | 1.1V per diode at rated current |
| Operating Temperature | T_J | −40°C to +150°C (junction) |
| Package | — | GBPC (bolt-down, wire leads) |
| Pack Quantity | — | 2pcs |
| Certification | — | CE, RoHS |
DC Output Reference
| AC Input (RMS) | DC Output (No Load) | Application |
|---|---|---|
| 220V AC | ~311V DC | Air conditioner compressor VFD DC bus |
| 110V AC | ~155V DC | North American 110V equipment |
| 36V AC | ~50V DC | Welding machine output rectifier |
| 24V AC | ~34V DC | Industrial power supply |
Typical Applications
- Air Conditioner: Rectifier bridge in split-type and window air conditioner compressor drive circuits, converting 220V AC mains to DC bus for the inverter drive
- Electric Welding Machine: Output rectifier in MMA (stick) and MIG welding machine power supplies for AC-to-DC conversion of the transformer secondary output
- Industrial Motor Drive: Input rectifier in variable frequency drive (VFD) and servo drive power stages for single-phase 220V input applications
- Industrial Power Supply: High-current AC-to-DC rectifier for industrial DC power supplies, battery chargers, and electroplating power supplies
- UPS Systems: Rectifier bridge in single-phase UPS and power conditioning equipment
Installation Notes
- Mount the GBPC3510W to a heatsink using thermal compound and an M4 bolt for adequate heat dissipation at rated current
- Connect AC input to the two AC terminals (marked ∼) and DC output from the + and − terminals
- Add a bulk electrolytic capacitor across DC+ and DC− to reduce output ripple
- Ensure heatsink thermal resistance is adequate to keep junction temperature below 150°C at rated load
FAQ
Q: Does the GBPC3510W require a heatsink?
A: Yes. At rated 35A current, the GBPC3510W dissipates approximately 77W (4 diodes × 1.1V × 17.5A each). A heatsink with thermal resistance ≤1.5°C/W is required for full-load operation.
Package Contents
- 2 × GBPC3510W single-phase bridge rectifier (35A 1000V)
